As reported on April 29, 2022 "Polish Radio", by now Poland has transferred to Ukraine more than 200 T-72 tanks from the presence of the Polish army. Together with the tanks, Poland delivered several dozen infantry fighting vehicles BMP-1 to Ukraine, as well as 122-mm self-propelled howitzers 2S1 "Carnation" and 122-mm MLRS BM-21 "Grad".
Presumably, the transportation to Ukraine of one of the T-72M1 tanks transferred by the Polish army, 11.04.2022 (c) anna-news.info
Earlier on April 23, Polish Prime Minister Mateusz Morawiecki said that since the beginning of the Russian military special operation, Poland had provided Ukraine with military assistance totaling 7 billion zlotys (1.5 billion euros), and that Ukraine had received "weapons, ammunition, the necessary anti-aircraft and anti-tank weapons, including heavy equipment."
It is reported that Poland has also transferred Soviet-made R-27 and R-73 air-to-air missiles for MiG-29 and Su-27 aircraft to the Ukrainian Air Force, and a large amount of ammunition. Poland also supplied Ukraine with portable Piorun air defense systems and small reconnaissance unmanned aerial vehicles manufactured by FlyEye of the Polish company WB Electonics
According to the Polish report to the UN Register of Conventional Arms, at the end of 2020, Poland had 358 T-72M/M1 tanks of national licensed production, and according to the presentation of the Polish Ground Forces Inspection from September 2021, there were 301 tanks (perhaps the difference stems from different accounting of different categories of vehicles in storage). Since 2019, Poland has launched a program of major repairs and limited modernization of these tanks according to the T-72M1R variant, according to which it was planned to modernize 230 tanks (with an option for another 88, that is, a total of 318 tanks). In 2020-2021, 75 modernized tanks were actually delivered, and in 2022 it was planned to deliver another 50 (that is, to have a total of 125). Apparently, all the other unmodernized tanks are being transferred to Ukraine.
According to the same presentation of the Inspection of the Polish Land Forces from September 2021, the Polish army on that date had 1104 BMP-1 and 38 BRM-1K vehicles.
To date, the transfer of T-72M/M1 tanks to Ukraine from the presence of its armed forces is also being carried out by the Czech Republic and Slovakia. On April 19, the Romanian Ministry of Defense also announced its decision to transfer 28 T-72 tanks in its custody to Ukraine. Romania received these T-72 tanks of an early export modification ("without a letter") from the USSR in 1978, and they have been in storage since 2011. In general, apparently, the resource of the transfer of T-72 tanks to Ukraine
On April 22, in addition, the German media reported that the German government had reached an agreement with Slovenia, according to which the latter would transfer to Ukraine "from 30 to 40" of the Yugoslav-made M-84 tanks available to it (a Yugoslav license modified version of the T 72), and in return Slovenia would receive obsolete infantry fighting vehicles from Germany from storage Marder and Fuchs wheeled armored personnel carriers (6x6). Slovenia, after seceding from Yugoslavia in 1991, got 54 M-84 tanks of the former Yugoslav People's Army. According to known data, Slovenia now has 46 M-84 tanks, of which only 13 or 14 underwent major repairs in 2019-2020 and are being equipped with the 72nd brigade of the Slovenian army. Therefore, apparently, the remaining Slovenian M-84 tanks, which have not been repaired and have been in storage since at least 2013, will be transferred to Ukraine.
In general, the total resource of transferring T-72 tanks from Eastern Europe to Ukraine can be estimated at up to 500 units, although, apparently, a significant part of them needs major repairs, and may be used for spare parts.